Most ships of the Pinto's size are more specialized. The Pinto can carry a couple squadrons of ASFs, and has a dropship collar (very notable on this front, most warships this size don't have a DS collar), and has some naval grade weaponry, and has some mech-grade weaponry for engaging dropships or ASFs. It has a surprisingly wide range of weapon systems. It has a platoon of marines.
As a ship-to-ship warship combatant it's awfully weak. Low naval grade firepower mostly at shorter ranges, cringeworthy low armor. But bring one to a fight with pirates flying around in dropships and you probably have the upper hand in a heartbeat.
Also, there is something of a deterrent effect, however weak, against a neighbor with warships, or Reunification War part Deuce. They can probably beat you, but you aren't completely unarmed so they can't just arrive, park themselves in orbit, threaten orbital bombardment and declare victory at the first hour of the war. Which is a real concern in this particular era when every faction has warships.
I've continued to dig around on paint schemes and I got nothing. You can look at camospecs website for the Air Wing camo of the 3050s. I see some commonality there among them, a mix of whites, blues and grays seems to be common. Which makes me wonder if some melding of those colors would be best. Or you could draw inspiration from the pilot uniforms of the 3050s, which were white and green.
But truthfully I wouldn't take my word on it. I'd collect more data or at least opinions.
